3 terms
A game engine is the reusable software framework that renders graphics, simulates physics, plays audio and runs game logic so teams can build games faster.
Unity is a cross-platform game engine with a visual editor and C# scripting, widely used for mobile, indie, 2D, 3D, VR and AR games and interactive…
Unreal Engine is the Epic Games real-time 3D engine used to build games and visual productions, known for Nanite geometry, Lumen lighting and Blueprints.